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- H. B. WILLIAMS.`

WATER PRESSURE REGULATOR.

N0-.4o7.981. Patented Jilly so', 1889.

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`the drawings UNITED STATES PATENT OFFICE.

HENRY n. wILLIAMs, oERocHEsmR, NEW YORK, AssIGNoE ou FIVE- EIoHTIlIs To LEMUEI. A.

JEFFREYS, OF SAME PLACE.

wATERfPRI-:ssU-RE REGULATOR.

SPECIFICATION forming part of Letters Patent No. 407,981, dated July 30, 1889. Application filed May 2118S9. Serial No. 311,573. (No model.)

To all whom. it may concern:

Be it known that I, HENRY B. WILLIAMS, of- Rochester, in thev county of Monroe and State of New York, have invented a certain new and 'useful IInprovcn-ient in fatter-Pressure Regulators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to accompanying this application. My improvement relates to water-pressure regulators;'andthe object is toreduce the -pressure on the service-pipes where there is an excess of pressure on thev main; lalso, to increase the pressure on the main by reducing the pressure in the service-pipes in case of emergency, such as fire.'

g lThe invention consists in the construction and arrangement' of parts, -hereinafter described and specifically claimed. 1

. In 'the drawings, Figure'l'is-a plan View of my .improved pressure-regulator.` Fig. 2 is a vertical longitudinal section in line :nx-of Fig. l. Fig. 3 is a vertical cross-section in line y 'y of Fig. 2.

A indicates-a hollow chamber, which is the receiving-chamber. n v

B is the induction-pipe leading to the main, and C is the eduction-pipe Aleadin g to the service-pipe, said pipes beingscrewed into oppositelcnds of the receiving-chamber.

My improvement is as follows:`

D is a'wing forming a valve, whichstands crosswise of the chamber A, and isattached to ashaft E, by which means. it can swingv forward and back. In its normal position it stands vertically and rests against a stop a, as shownbythe full lines in Fig. 2; but when forced forward by thepressure of water it stands in an inclined position and shuts against an inclined seat b and cuts oif the supply to" the service-pipe, as indicated by the dotted lines, Fig. 2.- A passage c is left under the bottom of the valve for the iow of water from the induction to the eduction passage, and the valve is also provided with a hole (Z, which allows passage through to the eduction-pipeeven when the valve is closed tight-ly against its seat j Ei is a long arm, Whichforms a continuament by a set-screw or tion ofthe shaft E, and G is a sliding weight sliding thereon and secured weight forming a coun ter-balance against l the at any adjust-v other means, said pressure of water that comes against the valve. The pressure vof water against the back of the valve has the tendency to force the'valveforward against the seat, andthe counter-Weight hasV the opposite -tendency 'of opening the valve.

' II is anarrnpivoted at f to the side ot' the case,l and 'stopped against downward Inovenient beyond a certain degree bya pin g, but

havng a free upward movement.

h, that extends across and above the arm I?" The operation is as follows: Under mins mum pressure the valve stands vertical, an(L` the waterpasses under it from the induction to the eduction inan uninterrupted iiow. 'In case of excessot'v pressure from the main the valve is forcedforWard-and gradually closes the passagathus diminishing the iiow to the is a heavy weight adjustable to different positions .on arm H, and provided with a par' servicep ipes,'-aiid under very heavy pressure it closes the-valveagainst its seat and cuts off the iiow,except through the hole d, which is'suiiicient `to supply the service-pipe under small pressure. J ust .before the valve closes ,the arm E in rising strikes the pin h of arm I "H and raises the latter with the'weight I attached, thus addinggreatly to the pow'er opposing the pressure.-- When the pressure is again reduced in Vthe valve, this great weight will start the valve back, after which theweight I isstayed by arm H striking pin Q,and the valve is carried back by Weight G alone.

Having described v my invention, what I claim as new, and desire to secure by Letters Patent, isi l. In a pressurefregulator, the combination,

with the case A and 'induction and eduction pipes VB C, of the valve D, adapted to close against a seat b, and provided with a hole d,

and the weighted-arm E', connected with the valve, as and fdfthe'purpose specified.

chamber behind thel 2.. In a pressure-regulator, the combination,

with the case A and induction and eduletion pipes B C, 0f the swinging Valve D, provided. In witness whereof I have'hereunto signed with the hof d, the weighted arm E', oonmy name in the' preseno of two-subscribing nected with the Valve, and the supplemental witnesses. weighted arm H, piv'oted to the case and provided wthapin 71 restingvo-verarm E the Witnesses: whole arranged to operate in the manner and IV L. A'-, 'JEFFREYS, for the purpose specified. 1 A vR. F. OSG'OOD.

VII. B. WLLIAMS. 

